Automatic metal sodium feeding device

Abstract

The utility model discloses an automatic sodium metal feeding device, which belongs to the technical field of chemical equipment and comprises an explosion-proof box, a vacuum replacement detection system is arranged outside the explosion-proof box, and a sodium metal storage unit and an explosion-proof driving device are arranged in the explosion-proof box. The anti-explosion driving device comprises an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism and a clamping executing mechanism, the Y-axis moving mechanism is connected with a driving mechanism, the driving mechanism is used for driving the Y-axis moving mechanism to drive the X-axis moving mechanism to move in the Y-axis direction, the X-axis moving mechanism is used for driving the Z-axis moving mechanism to move in the X-axis direction, and the clamping executing mechanism is connected with the Z-axis moving mechanism. The Z-axis moving mechanism is used for driving the clamping executing mechanism to move in the Z-axis direction; and the clamping execution mechanism is used for clamping the metal sodium in the metal sodium storage unit and realizing the feeding action of the metal sodium. According to the utility model, automatic clamping and feeding actions of metal sodium can be realized, vacuum replacement of toxic, flammable and explosive gases can also be realized, and the overall safety of production is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical equipment, and in particular to an automatic sodium metal dosing device. Background Technology

[0002] Currently, free water is mixed in the production of alcohols in the chemical industry. To obtain high-purity alcohols, this free water needs to be removed. The industry practice is to add metallic sodium to the reaction vessel for adsorption to remove this free water.

[0003] Most alcohols are flammable and explosive, and many are also toxic. Currently, the industry mostly uses a glove box for manual addition. This involves placing metallic sodium in the glove box, closing it, and then manually opening the reactor valve to add the sodium. This method is cumbersome, requiring manual intervention. Errors can lead to inadequate sealing, leakage of flammable, explosive, or toxic gases, causing poisoning or injury. Furthermore, this method requires a large workforce. Chemical companies typically operate 24 / 7, requiring manual, timed addition of sodium to the reactor, necessitating significant manpower, including nighttime operations. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing an automatic sodium metal dosing device. It achieves automatic sodium metal clamping and feeding through an explosion-proof drive device and a vacuum displacement detection system, and uses the vacuum displacement detection system to replace toxic, flammable, and explosive gases, thereby improving overall production safety.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] An automatic sodium metal dosing device includes an explosion-proof box, an external vacuum displacement detection system, and an internal sodium metal storage unit and an explosion-proof drive device. The explosion-proof drive device includes an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis moving mechanism, and a gripping actuator. The Y-axis moving mechanism is connected to the drive mechanism, and the X-axis moving mechanism is mounted on top of the Y-axis moving mechanism. The drive mechanism drives the Y-axis moving mechanism to move the X-axis moving mechanism along the Y-axis. The Z-axis moving mechanism is mounted on the X-axis moving mechanism and drives the Z-axis moving mechanism to move along the X-axis. The gripping actuator is mounted on the Z-axis moving mechanism and drives the gripping actuator to move along the Z-axis. The gripping actuator is used to grip the sodium metal in the sodium metal storage unit and to perform the sodium metal dosing action.

[0007] The beneficial effects of adopting the above technical solution are as follows: by driving the Y-axis moving mechanism to move the X-axis moving mechanism along the Y-axis direction, the X-axis moving mechanism to move the Z-axis moving mechanism along the X-axis direction, and the Z-axis moving mechanism to move the gripping execution mechanism along the Z-axis direction, the gripping execution mechanism grips the sodium metal in the sodium metal storage unit and realizes the sodium metal addition action, the sodium metal gripping and feeding action can be realized, saving labor; by using the vacuum replacement detection system to realize the vacuum replacement of toxic, flammable and explosive gases, the overall safety of production is improved.

[0008] Furthermore, the drive mechanism includes an explosion-proof servo motor, a magnetohydrodynamic seal, and a reversing reducer. The explosion-proof servo motor is connected to the magnetohydrodynamic seal, the magnetohydrodynamic seal is connected to the reversing reducer, and the reversing reducer is connected to the Y-axis moving mechanism.

[0009] Furthermore, the explosion-proof servo motor is located outside the explosion-proof enclosure, while the magnetohydrodynamic seal and reversing reducer are located inside the explosion-proof enclosure.

[0010] The beneficial effect of adopting the above technical solution is that the explosion-proof servo motor transmits power to the interior of the explosion-proof box through the magnetic fluid seal, and the magnetic fluid seal transmits power to the Y-axis moving mechanism through the reversing reducer, thereby realizing the drive mechanism to drive the Y-axis moving mechanism to move the X-axis moving mechanism along the Y-axis direction.

[0011] Furthermore, the magnetohydrodynamic seal is connected to the reversing reducer via a double-joint universal joint.

[0012] The beneficial effects of adopting the above technical solution are that the magnetic fluid seal connection double universal joint transmits power to the Y-axis moving mechanism through the reversing reducer. The double universal joint allows for a large included angle between the two shafts and maintains high transmission efficiency and operational reliability.

[0013] Furthermore, the X-axis moving mechanism is a pneumatic slide, the Y-axis moving mechanism is a movable slide, and the Z-axis moving mechanism is a rodless cylinder.

[0014] The beneficial effects of adopting the above technical solution are that the X-axis moving mechanism is realized by a pneumatic slide table, the Y-axis moving mechanism is realized by a movable slide table, and the Z-axis moving mechanism is realized by a rodless cylinder, thereby realizing the movement of the clamping actuator in the X, Y, and Z axis directions.

[0015] Furthermore, the vacuum replacement detection system includes an explosion-proof vacuum pump, an inlet pipe, an outlet pipe, an explosion-proof pneumatic ball valve, an exhaust detector, and an exhaust outlet flange. One end of the inlet pipe is connected to the interior of the explosion-proof enclosure, and the other end is connected to the inlet of the explosion-proof vacuum pump. One end of the outlet pipe is connected to the outlet of the explosion-proof vacuum pump, and the other end is connected to the exhaust outlet flange. The explosion-proof pneumatic ball valve and the exhaust detector are installed on the outlet pipe.

[0016] The beneficial effects of adopting the above technical solution are that during the operation, the explosion-proof pneumatic ball valve is opened, the explosion-proof vacuum pump starts to pump air, and after pumping for 5 minutes, the explosion-proof vacuum pump is turned off; nitrogen is added to the explosion-proof box and stopped after reaching normal pressure; the explosion-proof vacuum pump starts to pump air again, and after the exhaust detector shows that there are no toxic, flammable and explosive gases in the exhaust, the replacement is qualified, which improves the overall safety of production.

[0017] Furthermore, the vacuum displacement detection system also includes a safety relief valve, which is installed on the outlet pipe.

[0018] The beneficial effect of adopting the above technical solution is that the safety relief valve can ensure that the pressure in the equipment and pipeline is kept within the set safe range, preventing explosion or damage caused by excessive pressure.

[0019] Furthermore, the explosion-proof vacuum pump is connected to the inlet pipe, the explosion-proof vacuum pump is connected to the outlet pipe, and the outlet pipe is connected to the explosion-proof pneumatic ball valve via flanges, and gaskets are provided between adjacent flanges.

[0020] The beneficial effect of adopting the above technical solution is that the gaskets installed between adjacent flanges can ensure the sealing of the connection.

[0021] Furthermore, the sodium metal storage unit is provided in multiple forms.

[0022] The beneficial effect of adopting the above technical solution is that by setting up multiple sodium metal storage units, the interval for replenishing sodium metal to the sodium metal storage units can be extended, thereby extending the operating time of the equipment.

[0023] Furthermore, the sodium metal storage unit comprises 24 units.

[0024] The beneficial effect of adopting the above technical solution is that by ensuring that the sodium in each sodium storage unit meets the production needs for one hour, the automatic sodium dosing device can meet the dosing needs for one day. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2This is a schematic diagram highlighting the explosion-proof drive device and drive mechanism structure of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Explosion-proof box; 2. Vacuum replacement detection system; 21. Explosion-proof vacuum pump; 22. Inlet pipe; 23. Outlet pipe; 24. Explosion-proof pneumatic ball valve; 25. Exhaust detector; 26. Exhaust gas outlet flange; 27. Safety relief valve; 3. Sodium metal storage unit; 4. Explosion-proof drive device; 41. X-axis moving mechanism; 42. Y-axis moving mechanism; 43. Z-axis moving mechanism; 44. Clamping actuator; 5. Drive mechanism; 51. Explosion-proof servo motor; 52. Magnetohydrodynamic seal; 53. Reversing reducer; 54. Double-joint universal joint; 6. Gasket; 7. Base; 8. Explosion-proof electrical cabinet; 9. Feed port. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-2 The principles and features of this utility model are described, and the examples given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0029] This utility model discloses an automatic sodium dosing device.

[0030] Reference Figures 1-2 An automatic sodium metal dosing device includes a base 7, on which an explosion-proof box 1 and an explosion-proof electrical cabinet 8 are mounted. The entire device is made of 304 stainless steel for rust and corrosion resistance. A vacuum replacement detection system 2 is installed externally on the explosion-proof box 1, which can perform vacuum replacement of toxic, flammable, and explosive gases, improving overall production safety. Inside the explosion-proof box 1 are a sodium metal storage unit 3, a feeding port 9, and an explosion-proof drive device 4. The sodium metal storage unit 3 stores the sodium metal to be added, and the explosion-proof drive device 4 performs the clamping action of the sodium metal in the storage unit 3 and adds the clamped sodium metal into the feeding port 9.

[0031] The explosion-proof box 1 features a rounded corner design and horizontal lattice reinforcement, and undergoes welding flaw detection and dual positive and negative pressure testing to ensure the box's robustness and pressure resistance. The automatic sodium dosing device can be equipped with an alcohol detector, temperature and humidity sensor, and pressure sensor to monitor the equipment's operating status, promptly alarming in case of any abnormality. In addition to the vacuum replacement detection system 2, the automatic sodium dosing device can also be equipped with a nitrogen replacement system and a nitrogen flow detection system to perform vacuuming and nitrogen filling within the explosion-proof box 1, ensuring safe manual operation. It should be noted that, except for the vacuum replacement detection system 2, all the above devices are existing technologies and will not be described in detail here.

[0032] The explosion-proof drive device 4 includes an X-axis moving mechanism 41, a Y-axis moving mechanism 42, a Z-axis moving mechanism 43, and a gripping execution mechanism 44. The Y-axis moving mechanism 42 is connected to a drive mechanism 5. The X-axis moving mechanism 41 is mounted on the Y-axis moving mechanism 42, and the drive mechanism 5 drives the Y-axis moving mechanism 42 to move the X-axis moving mechanism 41 along the Y-axis direction. The Z-axis moving mechanism 43 is mounted on the X-axis moving mechanism 41, and the X-axis moving mechanism 41 drives the Z-axis moving mechanism 43 to move along the X-axis direction. The gripping execution mechanism 44 is mounted on the Z-axis moving mechanism 43, and the Z-axis moving mechanism 43 drives the gripping execution mechanism 44 to move along the Z-axis direction. The specific structure of the gripping execution mechanism 44 is not specifically limited, as long as it can grip the sodium metal in the sodium metal storage unit 3 and perform the sodium metal addition action.

[0033] The drive mechanism 5 drives the Y-axis moving mechanism 42 to move the X-axis moving mechanism 41 along the Y-axis direction. The X-axis moving mechanism 41 drives the Z-axis moving mechanism 43 to move along the X-axis direction. The Z-axis moving mechanism 43 drives the clamping execution mechanism 44 to move along the Z-axis direction. The clamping execution mechanism 44 clamps the sodium metal in the sodium metal storage unit 3 and realizes the sodium metal addition action. This realizes the automatic clamping and feeding action of sodium metal, saving manpower.

[0034] The drive mechanism 5 includes an explosion-proof servo motor 51, a magnetohydrodynamic seal 52, and a reversing reducer 53. The explosion-proof servo motor 51 is connected to the magnetohydrodynamic seal 52, the magnetohydrodynamic seal 52 is connected to the reversing reducer 53, and the reversing reducer 53 is connected to the Y-axis moving mechanism 42. The explosion-proof servo motor 51 is located outside the explosion-proof enclosure 1, while the magnetohydrodynamic seal 52 and the reversing reducer 53 are located inside the explosion-proof enclosure 1. The explosion-proof servo motor 51 transmits power to the interior of the explosion-proof enclosure 1 through the magnetohydrodynamic seal 52, and the magnetohydrodynamic seal 52 transmits power to the Y-axis moving mechanism 42 through the reversing reducer 53, thereby enabling the drive mechanism 5 to drive the Y-axis moving mechanism 42 to move the X-axis moving mechanism 41 along the Y-axis direction.

[0035] The drive mechanism 5 also includes a double-joint universal joint 54, through which the magnetohydrodynamic seal 52 is connected to the reversing reducer 53. The magnetohydrodynamic seal 52, connected to the double-joint universal joint 54, transmits power to the Y-axis moving mechanism 42 via the reversing reducer 53. The double-joint universal joint 54 allows for a large included angle between the two shafts while maintaining high transmission efficiency and operational reliability.

[0036] The X-axis moving mechanism 41 is a pneumatic slide, the Y-axis moving mechanism 42 is a movable slide, and the Z-axis moving mechanism 43 is a rodless cylinder. By using a pneumatic slide for the X-axis moving mechanism 41, a movable slide for the Y-axis moving mechanism 42, and a rodless cylinder for the Z-axis moving mechanism 43, the movement of the clamping actuator 44 in the X, Y, and Z axes can be realized, ultimately achieving automatic clamping and feeding of metallic sodium.

[0037] Multiple sodium storage units 3 are provided to extend the interval for replenishing sodium into the sodium storage units 3, thereby extending the operating time of the equipment. Specifically, 24 sodium storage units 3 are provided, and by ensuring that the sodium in each sodium storage unit 3 meets the production needs for one hour, the automatic sodium dosing device can meet the dosing requirements for one day.

[0038] The vacuum displacement detection system 2 includes an explosion-proof vacuum pump 21, an inlet pipe 22, an outlet pipe 23, an explosion-proof pneumatic ball valve 24, an exhaust gas detector 25, and an exhaust gas outlet flange 26. One end of the inlet pipe 22 is connected to the inside of the explosion-proof box 1, and the other end is connected to the inlet of the explosion-proof vacuum pump 21. One end of the outlet pipe 23 is connected to the outlet of the explosion-proof vacuum pump 21, and the other end is connected to the exhaust gas outlet flange 26. The explosion-proof pneumatic ball valve 24 and the exhaust gas detector 25 are installed on the outlet pipe 23.

[0039] The working sequence is as follows: the explosion-proof pneumatic ball valve 24 is opened, the explosion-proof vacuum pump 21 is started to pump air, and after pumping for 5 minutes, the explosion-proof vacuum pump 21 is turned off; nitrogen is added to the explosion-proof box 1 and stopped after reaching normal pressure; the explosion-proof vacuum pump 21 is started to pump air again, and after the exhaust detector 25 shows that there are no toxic, flammable and explosive gases in the exhaust, the replacement is qualified, which improves the overall safety of production.

[0040] The vacuum displacement detection system 2 also includes a safety relief valve 27, which is installed on the outlet pipeline 23 to ensure that the pressure in the equipment and pipeline is kept within a set safe range, preventing explosion or damage caused by excessive pressure.

[0041] The explosion-proof vacuum pump 21 is connected to the inlet pipe 22, the explosion-proof vacuum pump 21 is connected to the outlet pipe 23, and the outlet pipe 23 is connected to the explosion-proof pneumatic ball valve 24 via flanges, and gaskets 6 are installed between adjacent flanges. The flange connections and gaskets 6 between all components ensure the sealing of the connections. Specifically, the gaskets 6 can be inner and outer ring metal-graphite spiral wound flange gaskets, i.e., inner and outer ring metal spiral wound gaskets.

[0042] The electrical control components of the vacuum displacement detection system 2, the explosion-proof drive device 4, and the drive mechanism 5 are all electrically connected to the explosion-proof electrical cabinet 8 to control the execution of each action process.

[0043] It should be noted that, unless otherwise specified, all devices used in the automatic sodium dosing device of this utility model are existing devices, and will not be described in detail here.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic sodium metal dosing device, characterized in that: The device includes an explosion-proof enclosure (1), an external vacuum displacement detection system (2) for the enclosure (1), and a sodium metal storage unit (3) and an explosion-proof drive device (4) inside the enclosure (1). The explosion-proof drive device (4) includes an X-axis moving mechanism (41), a Y-axis moving mechanism (42), a Z-axis moving mechanism (43), and a gripping execution mechanism (44). The Y-axis moving mechanism (42) is connected to a drive mechanism (5). The X-axis moving mechanism (41) is mounted on the Y-axis moving mechanism (42). The drive mechanism (5) is used to drive the Y-axis moving mechanism. (42) Drive the X-axis moving mechanism (41) to move along the Y-axis direction; the Z-axis moving mechanism (43) is installed on the X-axis moving mechanism (41), and the X-axis moving mechanism (41) is used to drive the Z-axis moving mechanism (43) to move along the X-axis direction; the gripping execution mechanism (44) is installed on the Z-axis moving mechanism (43), and the Z-axis moving mechanism (43) is used to drive the gripping execution mechanism (44) to move along the Z-axis direction; the gripping execution mechanism (44) is used to grip the sodium metal in the sodium metal storage unit (3) and to realize the sodium metal addition action.

2. The automatic sodium dosing device according to claim 1, characterized in that: The drive mechanism (5) includes an explosion-proof servo motor (51), a magnetic fluid seal (52), and a reversing reducer (53). The explosion-proof servo motor (51) is connected to the magnetic fluid seal (52), the magnetic fluid seal (52) is connected to the reversing reducer (53), and the reversing reducer (53) is connected to the Y-axis moving mechanism (42).

3. The automatic sodium dosing device according to claim 2, characterized in that: The magnetohydrodynamic seal (52) is connected to the reversing reducer (53) via a double-joint universal joint (54).

4. The automatic sodium dosing device according to claim 2, characterized in that: The explosion-proof servo motor (51) is located outside the explosion-proof box (1), while the magnetohydrodynamic seal (52) and the reversing reducer (53) are located inside the explosion-proof box (1).

5. The automatic sodium dosing device according to claim 1, characterized in that: The X-axis moving mechanism (41) is a pneumatic slide, the Y-axis moving mechanism (42) is a moving slide, and the Z-axis moving mechanism (43) is a rodless cylinder.

6. The automatic sodium dosing device according to claim 1, characterized in that: The vacuum displacement detection system (2) includes an explosion-proof vacuum pump (21), an inlet pipe (22), an outlet pipe (23), an explosion-proof pneumatic ball valve (24), an exhaust detector (25), and an exhaust outlet flange (26). One end of the inlet pipe (22) is connected to the inside of the explosion-proof box (1), and the other end is connected to the inlet of the explosion-proof vacuum pump (21). One end of the outlet pipe (23) is connected to the outlet of the explosion-proof vacuum pump (21), and the other end is connected to the exhaust outlet flange (26). The explosion-proof pneumatic ball valve (24) and the exhaust detector (25) are installed on the outlet pipe (23).

7. The automatic sodium dosing device according to claim 6, characterized in that: The vacuum displacement detection system (2) also includes a safety relief valve (27), which is installed on the outlet pipeline (23).

8. The automatic sodium dosing device according to claim 7, characterized in that: The explosion-proof vacuum pump (21) is connected to the inlet pipe (22), the explosion-proof vacuum pump (21) is connected to the outlet pipe (23), and the outlet pipe (23) is connected to the explosion-proof pneumatic ball valve (24) through flanges, and gaskets (6) are provided between adjacent flanges.

9. The automatic sodium dosing device according to claim 1, characterized in that: The sodium metal storage unit (3) is provided in multiple units.

10. The automatic sodium dosing device according to claim 9, characterized in that: The sodium metal storage unit (3) has 24 units.

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